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what is the difference between the "len" and "return" because isn't they both returning the value in a function?
I would like to know what is the difference between the "len" and "return" because isn't they both returning the value in a function? In the create a funtion video we used "len" to return a value and in "repeating values" video we used the "return" keyword to return a value. When do I use the len and when do I use the return?
Curtis Vanzandt9,165 Points
len() is a method built into Python. It returns the length of an object. For strings, it returns the amount of characters in that string.
return is a keyword used when writing functions. It's used to return a value, be it a string, integer, boolean value, or whatever.
Yuyang Peng5,665 Points
len() contains return, and that is why len() returns a value the function len() would look like //just a basic idea len(parameter): return //the length of parameter Curtis already explained very well, I hope this adds some information to it.
return is the keyword used by
len(), and all the functions that need to return a value, to actually return a value.
The len() function uses the return keyword once it has calculated the number of character of the string that was passed in.
def len(string): # Calculate the length return result